No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
yacs has 2.9M monthly downloads and 1K GitHub stars. Version 0.1.8, first published in 2018.
It is showing limited recent maintenance under a permissive license, last released in Aug 2020.
It is used by 106 tracked packages, including boxmot, nnunetv2 and iopaint.
GitHub topics include research, configuration-management and experimental-design.
Package Insights
Package Risks
- Moderate bus factor: only 8 contributor(s) for this download volume
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
20
Popularity
63
Adoption
60
Community
25
Provenance
0
How the maintenance status was determined
Last commit
2156 days ago
Monthly downloads
2,868,826
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
•
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
2,868,826
Stars
1,336
Stars per 1k downloads
0.47
Industry Standard
> 10,000,000 monthly downloads
•
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
72,236
Month daily avg
95,628
Momentum
-24.5%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
Not specified
Cutting Edge
Minimum supported version is 3.12 or newer
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
•
Unknown
No requires_python specified or unparseable
Package does not declare a minimum Python version.
License categories
License
Apache Software License
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
2156 days ago
Total releases
9
Releases/year
1.1
Rapid
Last release within 365 days and > 12 releases/year
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
•
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
8
Monthly downloads
2,868,826
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
•
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
41
Issue Burden
17.2
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
8.9%
contrib / forks
Stale Release
No
PR Velocity
Active
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
44.0K
Windows
9.6K
macOS
842
Python Versions
3.12
34.9%
18.4K
3.11
29.0%
15.3K
3.10
24.0%
12.6K
3.13
8.4%
4.4K
3.8
3.7%
1.9K
Top Countries
1.
US
32.2K
US
2.
SG
5.1K
SG
3.
KR
2.1K
KR
4.
JP
2.1K
JP
5.
CN
1.1K
CN
6.
AU
985
AU
7.
DE
930
DE
8.
CA
777
CA
9.
NL
732
NL
10.
IN
502
IN
Dependencies
0
No dependencies
Used By
106
- boxmot
- nnunetv2
- iopaint
- nnunetv2-neuropoly
- vismatch
- paddlespeech
- pytorch-image-translation-models
- biapy
- easy-local-features
- dane
- brails
- few-shot-learning-nlp
- primo-stitch
- magdi-segmentation-models-3d
- image-matching-models
- pyppbox-torchreid
- dnt
- pytext-nlp
- cryosphere
- ontology-transformer
- phobos
- pixellib
- tracklab
- unlearn-diff
- labgym
- hyperresashs
- medvae
- flower-classifier
- deeponto
- ft2bt
- quant2
- tsts
- deep-image-matching
- torchline
- chameleoniq
- granular-engine
- glip-object-detection
- hi-ml-cpath
- spach-transformer
- visaionlibrary
- nodetool
- recap
- micaflow
- boxmot-with-tracker
- fastreid
- mouse-tracking
- imcui
- fmpose3d
- sample-loggers
- emotion-framework
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
Apache Software License
First Release
August 21, 2018
Last Release
5 years ago
Last Commit
5 years ago
Latest Version
0.1.8
Total Releases
9
Contributors
8
Open PRs
7
Archived
No
Author
Ross Girshick
Python Versions
2.7
3
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh